Venue transformation and construction method for creating a public access tropical style swimming lagoon with beaches at the infield of racing and/or activity circuits

ABSTRACT

A venue transformation and construction method is disclosed that creates a tropical style swimming lagoon at an infield site of a race or activity circuit facility, the infield site being contained within a race or activity circuit perimeter. The transformation includes demolishing at least part of the infield site; excavating material from an area within the infield site; and forming a basin for a large water body having a surface area of at least 3,000 m2. Water containment walls are constructed on a first section and a sloped access area is formed on a second section of the basin for a beach. A barrier is included to control access to the beach. At least one additional recreational facility is constructed around the basin and a connection is provided that connects the outfield of the race or activity circuit with the infield site to allow transit of vehicles and/or people.

This application is a Continuation of U.S. patent Ser. No. 16/725,987,filed Dec. 23, 2019 which is a Continuation-in-Part of U.S. patentapplication Ser. No. 16/538,273, filed Aug. 12, 2019 (now U.S. Pat. No.10,724,260 issued on Jul. 28, 2020, which claims benefit of U.S.Provisional Ser. No. 62/785,086, filed Dec. 26, 2018 and whichapplications are incorporated herein by reference. To the extentappropriate, a claim of priority is made to each of the above disclosedapplications.

FIELD OF THE INVENTION

The present invention relates generally to a venue transformation andconstruction method for creating a public access tropical style swimminglagoon at the centerfield of racing and/or activity circuits, forswimming and the practice of water sports, wherein a portion of theinfield of such racing and/or activity circuits is demolished in orderto generate a swimming lagoon. There is at least an area of the tropicalstyle swimming lagoon where public access is controlled, and a beacharea is preferably located within the controlled access area.

BACKGROUND OF THE INVENTION

Although once a booming market, over the years the growth of race and/oractivity circuits such as horse race tracks, speedways, athleticcourses, among other installations has stopped and is sometimes evendeclining or has limited uses, one reason being the lack of innovationand additional amenities and features present at these facilities.

In the case of horse race tracks, it has been estimated that its marketsize for 2019 is USD$3.8 billion (IbisWorld, 2004), with a steadydecline tendency of −0.6% per year on average over the last five years.The U.S. alone has more than 75 horse race tracks (WorldCasinolndex,2019), and more than 250 worldwide, representing an interesting marketto develop and promote new uses and innovations.

In the case of motor race tracks, there are many types such as dirttracks, paved ovals, and speedways. Dirt track racing is one of the mostcommon types of auto racing in the U.S., and according to the NationalSpeedway Directory there are more than 700 dirt oval tracks in the U.S.(SpeedwayDirectory, 2019). On the other hand, paved tracks are also usedfor racing, commonly referred to as speedways, and have different shapesbut always having a center location where the racing circuit has an ovallike shape.

Generally, these types of facilities are only used during planned eventsand races during the day, not usually being able to use them every dayor at nighttime, which means that there is a lot of “dead” times wherethe facilities are not utilized and therefore they have a very highopportunity cost.

For horse race tracks, for example, generally the races are held once ortwice a week, mostly over the weekend, and some facilities have racesduring a few months of the year and not throughout the year due. Formotor race tracks and speedways, it is very similar with motor racesbeing held a few times per week at most. Athletic circuits are even lessintensively used, with athletic races or competitions being generallyheld a few times per month.

However, it's important to mention that even when these facilities areholding an event, there are areas such as the infield area that are notusually utilized for other purposes. Spectators and visitors generallyconcentrate on the outside borders of the race track and the infield andcenter of the track does not hold other major activities.

On the other hand, all of these types of facilities have been designed,built, and permitted in order to house a large number of people andvisitors, having the proper amount of parking spaces, road connections,restroom facilities, and other installations that allow holding massiveevents and gatherings. In addition, most of these facilities are locatedin or close to urban locations, or that are easily accessed by largenumbers of people. It is important to highlight that the look of thesetypes of facilities is very similar and generally tends to move towardrough concrete and artificial looking structures, not beingaesthetically pleasant for visitors.

Therefore, one wonders why all of these locations that are alreadydesigned and built to house massive amounts of people are sounderutilized, being used a few times per week or per season but alreadyhaving all the infrastructure needed to operate every day if necessary.There is a poor utilization of urban spaces, with facilities that areable to congregate large amounts of people and that have prime locationseasily accessed by visitors not being used more often.

In addition to this poor use of well-connected urban spaces withinfrastructure to hold large events and gatherings, there has been anexplosive increase in worldwide tourism over the years that hassubstantially increased its carbon footprint (See FIG. 1 that shows theincrease of tourists over the years). This is mainly because people haveto travel long distances and use their car, or have to fly, or use othertransport means to be able to reach waterfront settings and beach areas,sometimes having to travel hundreds of miles to be a part of a beautifulwaterfront beach setting, in result having a very large carbon footprintdue to all of this movement. This is especially relevant today, wheresociety has become very aware of carbon footprint, where travel is oneof the big contributors of carbon emissions.

Finally, it's important to note that urban locations are very hectic andstressful and urban population has increasing demands for openrecreational spaces where they can relax, practice sports, and enjoy ofbeautiful scenery and spaces. Congregation spaces are scarce, and theold tradition of congregating in shopping malls or retail facilities hasshifted into a search for open and natural settings.

Therefore, as it has been mentioned before, there are many of thesetypes of racetrack facilities that have already built infrastructure tohold large numbers of people, but that have limited uses or are onlyused during programmed events, that have poor aesthetics, and that onlyoffer their visitors with very limited activities and amenities.

SUMMARY

Therefore, according to one aspect of the invention, there is provided avenue transformation and construction method for creating a tropicalstyle swimming lagoon with a sloped access at an infield site of a raceor activity circuit facility, the infield site being contained within arace or activity circuit perimeter, the method comprising: demolishingat least part of the infield site, wherein the demolition processincludes excavating at least a 15 cm to 6 meter layer; excavatingmaterial having a volume of at least 4,000 m3 from an area within theinfield site; forming a basin for a large water body having a surfacearea of at least 3,000 m2 and a minimum depth of at least 1.4 meters atits deepest point, wherein earthworks for the basin are created withinthe infield surrounding perimeter, and wherein the basin includes abasin perimeter and a bottom; constructing water containment walls on atleast one section of the basin perimeter to form a waterfront perimeter,and covering the bottom of the basin with a non-permeable material notincluding thick concrete like conventional swimming pools, wherein theshape of the waterfront perimeter is curved and the basin has a maximumwidth of 300 meters; constructing a sloped access area on at least onesection of the basin perimeter to form a beach access into the largewater body; constructing one or more barriers around the basin perimeterto cordon off an area to establish a controlled access area, wherein thecontrolled access area includes a beach access perimeter, and thebarriers include at least one access point to selectively allow usersinto the controlled access area, whereby the users allowed entry intothe controlled access area are able to use the beach access;constructing at least one additional recreational facility comprisingfood and beverage and commercial facilities such as restaurants, bars,kiosks, stores, cafes among others in the vicinity of the waterfrontperimeter; and providing a connection that connects the outfield of theracing and/or activity circuit with the infield site, in order to allowtransit of vehicles and/or people from the outfield to the infield.

These and other variations of the invention will become apparent tothose skilled in the art upon a more detailed description of theinvention. The advantages and features which characterize the inventionare pointed out with particularity in the claims annexed hereto andforming a part hereof. For a better understanding of the invention,however, reference should be had to the drawings which form a parthereof and to the accompanying descriptive matter, in which there isillustrated and described a preferred embodiment of the invention.

DESCRIPTION OF FIGURES

Referring to the drawings, wherein like numerals represent like partsthroughout the several views:

FIG. 1 shows the number of international tourist arrivals given by theWorld Tourism Organization in 2017, referring to the number of inboundjourneys by international tourists to a country outside the destinationthey live in for a duration of less than a year.

FIG. 2 illustrates a top view of a schematic of the race track facility(1) after the method from the present invention has been implemented,wherein a swimming lagoon (6) with at least one beach area (7) has beenconstructed at the infield site (3) of a race track facility (1),including also a connection path (4) and a spectator area (5).

FIG. 3 shows illustrates a prophetic example of a horse race track (1)after the method from the present invention has been implemented,wherein a swimming lagoon (3) is located in the infield site (3),wherein the swimming lagoon as an extended beach area (7) surrounded bythe track circuit (2).

FIG. 4 shows a preferred construction method 8 in accordance with theprinciples of the present invention. The first step 8 a is to demolishat least part of the infield site. The next step 8 b is to excavatematerials having a volume of at least 4,000 m3. Then at step 8 c a basinis formed for large water body having a surface area of at least 3,000m2, this may include in part earthworks from the excavated materialand/or from additional materials brought to the site. At step 8 d, watercontainment walls are constructed on at least one section of the basin.At step 8 e, a sloped access area in at least one section of the basinis optionally created in the event a swimming area is included. At 8 f,barriers are constructed around the basin perimeter to establish acontrolled access area for a beach or other area in which usercontrolled access is desired. At step 8 g, at least one additionalrecreational facility is constructed, and finally at step 8 h aconnection is provided between the outfield and the infield site toallow transit of vehicles and/or people from both sides.

FIGS. 5 and 6 show side views of embodiments of the containment walls 10for the basin of the swimming lagoon 6. First referring to FIG. 5,backfill material 11 is included to provide structural stability to thecontainment wall 10. A non-permeable material 13 contains the water inthe large water body (e.g., the swimming lagoon 6), and is located ontop of the bottom soil 12. FIG. 5 illustrates an embodiment in which thedepth of the lagoon 6 near the wall is relatively shallow. Next FIG. 6shows a side view of another embodiment of the containment walls 10 forthe basin of the swimming lagoon 6, showing backfill material 11 toprovide structural stability to the containment wall, and wherein anon-permeable material 13 contains the water within the large waterbody, and is located on top of the bottom soil 12. FIG. 6 illustrates anembodiment in which the depth of the lagoon 6 near the wall isrelatively deep.

FIG. 7 shows a side view of an embodiment of a sloped access 9 to thebasin of the swimming lagoon 6, wherein a support slab 14 is providedunderneath a portion of the sloped access 15, and the non-permeablematerial 13 for containing the water in the large water body.

DETAILED DESCRIPTION OF THE INVENTION

The method from the present invention, as seen in FIG. 3, allows to, inan innovative way, transform race tracks and zones within race trackslocated in urban areas with good connectivity, which currently have veryfew uses, in order to provide beautiful tropical-style beach-likesettings in front of a crystal clear lagoon that can help solving theneed for more recreational urban open air spaces and tourism needs witha lower carbon footprint and therefore become a completely new andradical trend that can change the lifestyle of people around the world.

The present invention relates generally to a venue transformation andconstruction method for creating a controlled access tropical styleswimming lagoon with crystal clear turquoise waters and beaches at thecenterfield of racing and/or activity circuits, for swimming and thepractice of water sports, wherein a portion of the infield of suchracing and/or activity circuits is demolished in order to generate aswimming lagoon according to designs, construction parameters andconfigurations. There is at least an area of the tropical style swimminglagoon where public access is controlled, and a beach area is preferablylocated within the controlled access area.

As used herein, tropical-style refers to clear water lagoons with roundshapes, that are suitable for direct contact recreational purposes, andthat usually have turquoise colored crystal clear waters and do not havevisible macro algae presence or a green water tonality like artificiallagoons and lakes located in parks and golf courses, among others.

The present invention aims to improve the aesthetics and provide newuses to race and/or activity circuits such as horse race tracks,speedways, athletic courses, in order to allow such facilities to beused over larger periods of time and/or periodically compared to currentuses of once or twice per week.

One important and common feature all of these facilities have is thepresence of a large infield that is located in the center location ofthe facility, being surrounded by the racing circuit. At the same time,current worldwide trends indicate that people are more and more lookingfor outdoor activities that can transport them into beautiful naturallandscapes and scenery, where being in tropical sandy beaches andwaterfront sceneries are one of the top experiences.

As such, the present invention discloses a venue transformation andconstruction method for creating a tropical style swimming lagoon withbeaches in the centerfield of race or activity circuits which aims torepurpose the infield of such circuits by creating a recreational venuewith at least one swimming lagoon and additional amenities. In apreferred embodiment of the invention, the recreational venue includes anumber of recreational amenities, and may include a swimming area withinthe swimming lagoon with at least one beach located in its perimeter.

As used herein, race or activity circuits refer to any motor, animal, orathletic race tracks or circuits such as for auto, karts, motorcycles,trucks, horses, and dog racing as well as for track and field athleticevents.

As used herein, infield site refers to the land comprised in the innerlocation of a race or activity circuit.

Typically, the infield site does not have tall constructioninstallations or structures, as such sites should not significantlyblock the view of visitors attending the race or activity circuitinstallation. Therefore, an infield site must be provided in order toplan and coordinate the demolition process and the construction of thetropical style swimming lagoon. The infield site is located within theracing/activity circuit perimeter.

In more detail, the demolishing process comprises excavating at least aportion of the infield site to excavate a layer of between 15 cm to 6meters in order to provide the necessary excavated volume for theswimming lagoon construction. To provide clarity, for the purposes ofthis application the term demolishing encompasses not only knocking downor tearing down current structures or installations, but also removingdebris or non-fixed materials from such zone and digging or excavating aportion of the land as part of the construction method.

Optionally, if there are permanent or rigid structures within theinfield site, demolition can be performed of such structures to allowexcavation necessary to build the swimming lagoon.

The demolition process comprises excavation with machinery up to a depthof 20 centimeters over the final excavation level, where the final 20 cmmay be excavated manually.

Once the design excavation level is achieved, the bottom soil must becompacted to achieve a 95% Modified Proctor Density. A 95% ModifiedProctor Density means that the soil at the bottom is compacted to 95% ofits maximum dry density. This aims to reduce post-constructionsettlements rates of such soil. As a reference, the Modified Proctortest uses a 4-inch-diameter mold which holds 1/30 cubic feet of soil,and uses a 10 lb. hammer falling through 18 inches, with 25 blows oneach of five lifts, for a compaction effort of about 56,250 ft-lb/ft3.This can also be explained such that the bottom of the excavations areto be compacted to a 95% of the Maximum Dry Compacted Density, based onthe Modified Proctor test (ASTM D1557-02) when the soil type has morethan a 12% material passing under a N°200 mesh (opening of 0.075 mm).When the soil type has less than a 12% material passing under a N°200mesh (opening of 0.075 mm), the soil must be compacted to achieve noless than 80% of its Relative Density.

The process also includes excavating a volume of at least 4,000 m3,preferably at least 7,000 m3 from an area within the infield site. Thisexcavation material preferably will serve as the earthworks necessary toprovide the basin of the swimming lagoon, wherein such earthworks arecreated within the property perimeter, and wherein the basin includes abasin perimeter and a bottom. It will be appreciated by those of skillin the art that the excavated material may prove to be unsuitable forthe earthworks. For example the material may include a mixture of rocks,cement, tar or other detritus. In such an event, suitable fill and othermaterials may be brought to the site for the earthworks.

The basin for the lagoon is designed and constructed so that its surfacearea is at least 3,000 m2, preferably at least 5,000 m2, more preferablyat least 10,000 m2, and most preferably at least 15,000 m2 and itsdeepest point has a minimum depth of 1.4 meters. As a reference, mostinfields of racetracks have between 2-20 hectares, with some of thelarge racetracks of the world having for example 16 hectares at theirinfield (For example, Meydan Racecourse in Dubai).

It's important to highlight that for the swimming lagoon of the presentinvention, since it has a surface larger than 3,000 m2, conventionalswimming pool construction technologies are seldom economically andtechnically feasible, as for example swimming pool construction requiresto have a large and thick concrete structure that comprises a series ofinlets and outlets within the walls and bottom of the structure in orderto be able to create water movement and circulation that allows tofilter the complete water volume at least once per day. This is mainlyto have a homogeneous water body so that when withdrawing and filteringthe water flow means that the whole water volume is being filtered andthere are no dead areas that have no water circulation and wouldtherefore not be filtered efficiently.

For example, regulations for swimming pools around the world require theuse of bottom and/or wall nozzles, wherein regulations preferablyrequire the use of bottom inlets to be able to generate proper mixingand circulation of water before it is withdrawn from the pool to send tothe filtration system. For example, Florida's swimming pool constructionregulations require that inlets be installed so that spacing betweenfloor inlets does not exceed 20 ft. (6 m) and the distance between abottom inlet and a wall does not exceed 10 ft. (3 m). This means that a25 m×50 m Olympic pool for example would require more than 35 bottominlets, and a 3,000 m2 (60 m×60 m) swimming pool would require more than70 bottom inlets, in addition to wall inlets that would further allowmixing the water volume so that when withdrawing water from the maindrains, skimmers, or other withdrawal points and sending such water tothe filtration system, it effectively allows to filter the completewater volume of the pool from 1 to 6 times per day (generally 4 timesper day based on regulations). The present invention preferably requiresthat the swimming lagoon has at least 50% less inlets than thoserequired for the filtration system of a conventional swimming poolaccording to swimming pool standards. As a comparison, for a lagoon of15,000 m2 of surface (150×100), the number of bottom inlets would bemore than 350.

Containment walls are preferably constructed on at least one section ofthe basin perimeter, as to form a waterfront perimeter that is arrangedand configured to contain the water within the basin. Such containmentwalls require a backfill material in order to provide structuralintegrity to such walls.

In addition, a sloped area is preferably constructed in at least onesection of the basin perimeter in order to create a beach accessperimeter. The sloped area is constructed such that the slope of thebeach access perimeter is between 5% and 30%. The sloped area mayrequire construction or placement of a support slab in order to providestructural stability on such location. As an example, a support slab canbe built out of reinforced concrete, shotcrete, plastics, or othersupport materials. For example, the sloped area may have high foottraffic of users accessing the swimming lagoon.

The shape of the waterfront perimeter is preferably curved to create amore natural aspect of the swimming lagoon with a tropical style.Additionally, the basin has a maximum width of 300 meters at its widestpoint. The width of the lagoon is defined as the measurement or extentof the lagoon from side to side; the lesser of the two dimensions of thelagoon measurements. The length of the lagoon is defined as the largestdimensional measurement of the lagoon.

The maximum width of the lagoon is limited in up to 300 meters, as thereis little visual impact to be gained at eye level with larger distances.

The bottom of the basin is covered with a non-permeable material, inorder to act as a water containment structure. The non-permeable bottommaterial that covers the bottom of the basin comprises plastic liners,shotcrete, or flexible materials that do not require the use of a thickconcrete layer like conventional swimming pools. The use of vastsurfaces of thick concrete is problematic, as in addition of having highcosts, it can generate structural tensions that cause fractures, cracks,settlements in the concrete and may impact the structural properties ofthe basin.

In a preferred embodiment, the non-permeable material comprises aplastic liner of at least 1 mm of thickness, among other solutions. Theplastic liner can have different colors and tonalities, but preferablyit has a white, blue or light color which provides an intense turquoisetonality of the water body.

The swimming lagoon is built in order to provide a new and innovativeamenity that allows generating a completely new user experience in raceor activity circuit sites. Embodiments herein are directed to a swimminglagoon that is arranged and configured to optimize visitor experience.

Specifically, the lagoon is arranged and configured in a way such thatthe relationship between all elements and purposes of the differentareas of the lagoon enable guests and visitors to enjoy the experienceas well as interact with the different areas that may be designated fordifferent purposes. A beach area included in the swimming lagoon ispreferred. However, there may be instances when a sloped beach accesswith a swimming area is impractical or is otherwise not desired for thespecific site.

Further, the swimming lagoon is also preferably constructed in a mannerso that it can be used not only for swimming purposes, but also for thepractice of several water sports, such as kayaking, stand-up-paddling,boating, water skiing, among others and also providing a spectacularview of a turquoise crystal clear lagoon from the spectator area of therace track.

Although the swimming lagoon is man-made, it preferably includes shapesthat tend to imitate natural geometries, and comprises a slightlyelongated shape to provide visitors with at least one vantage point toexperience dramatic views of the lagoon and its surroundings.

Additionally, the tropical style swimming lagoon comprises differentelements and areas for providing an optimized visitor experience,preferably including at least one controlled access area. This isachieved by constructing one or more barriers around the basin perimeterof the swimming lagoon, in order to cordon off an area of the swimminglagoon to establish a controlled access area with a restricted accessswimming lagoon located within. In that case, the controlled access areaincludes at least one beach access perimeter within the basin perimeter,thereby providing a new recreational amenity and venue for visitors. Thebarriers comprise at least one access point to selectively allow usersinto the controlled access area. The remaining area about the basinperimeter can optionally be an open access area, meaning that is anon-ticketed area, that is freely accessed by users. However, thecontrolled access area preferably requires a ticket, voucher or otherpayment of an entry fee for accessing such area which can be includedwithin other fees or payments for example access can be included inseasonal tickets, or by being member of an association or group, beingincluded as part of lodging facilities, among others.

Controlled access areas may be created about the swimming lagoon forother purposes as well. However, in the case there are non-ticketedareas, it is important to include separate access points for bothcontrolled access areas and non-ticketed access areas of the lagoon.This enables visitors to clearly participate in either one or both areasdepending on their purpose for visiting the race/activity circuitfacility and its infield site and lagoon, including naturalarticulations and man-made focal points along the edge to encouragewalkability and foster visitors with a sense of discovery. The swimminglagoon can be illuminated through a lighting system, in order to allownighttime uses and have spectacular views from the spectator areas. Thelighting system comprises exterior lighting systems and/or underwatersystems.

As previously mentioned, it is preferred that the lagoon include atleast one controlled access area for visitors for at least one beacharea, wherein the beach area comprises a sandy beach and slopedtransition into the swimming lagoon. The controlled access area may bedesigned such that the total beach area to lagoon area ratio is 1:2.Further, the beach area is preferably placed and designed consideringgeneral summer sun orientation, optimizing visitor experience. Inanother embodiment of the invention, the controlled access areasurrounds the entire lagoon surface, and may include additionalamenities within the controlled access area, such as recreationalfacilities including cafes, bars, restaurants, and others.

In another embodiment of the invention the construction of anamphitheater in the surroundings of the lagoon and nearby the beacharea(s) is also preferred. This creates an opportunity to hold eventssuch as concerts and festivals, among others in a unique setting. Otheractivities include music on the beach, dining on the beach, and otherevents on the beach such as weddings and sports events, among manyothers. The surroundings of the beach may include cafes, bars,restaurants, beach centers, promenades, hotels, entertainmentfacilities, virtual and immersive experiences, and similar facilitiesand amenities.

In the case of having a non-ticketed area within the venue, the at leastone non-ticketed access area comprises optimized waterfront perimetersurrounding the swimming lagoon that has an unobstructed view of thelagoon and is not directly in front of any beach areas or esplanadesthat could affect the aesthetics of the landscape. The non-ticketedaccess area comprises restaurants, cafes, stores, bars, and similarfacilities in its surroundings.

A screen may also be provided in the vicinity of the swimming lagoon tobroadcast content and house events and shows, and can be located in thesame sector as the amphitheaters, to create a new event venue having theswimming lagoon as its backdrop. Such screen can be fixed or may beremovable and not permanent as to avoid creating obstructions to therace circuit during races or events, and can otherwise used for othertimes when racing events or activities are not held. The screen may alsobe used for streaming live or recorded events or general media, and thestage zone can be used to broadcast or hold e-sport competitions,concerts, plays, shows, performances, among others.

In an embodiment of the invention, the installations surrounding thetropical-style lagoon is artificially set with a beach theme, includingthe use of blue and white colors with the inspiration of the beach andbeach kiosks and lighthouses.

It is important to highlight that some features such as screens,amphitheaters, kiosks, or other facilities built or installed in thesurroundings of the tropical style lagoon should not interferesignificantly with the view of spectators. The swimming lagoon can alsobe surrounded by vegetation such as plants and trees.

The method of the present invention also includes a connection path inorder to allow transit of vehicles and people from one side to the otherwithout obstructing the racing and/or activity circuit. Such connectionpath can include constructing a tunnel structure that connects theoutfield of the racing and/or activity circuit with the infield site, ora bridge structure, the racing circuit can be designed to accommodatethe passing of people and vehicles from one side of the racing track tothe other during non-race times, or any other form that allows thepassing of people and/or vehicles.

Accordingly, other components that embody the principles of thisinvention can be configured within the spirit and intent of thisinvention. The arrangement described herein is provided as only oneexample of an embodiment that incorporates and practices the principlesof this invention. Other modifications and alterations are well withinthe knowledge of those skilled in the art and are to be included withinthe broad scope of the appended claims.

What is claimed is:
 1. A venue transformation and construction methodfor creating a tropical style swimming lagoon with crystal clear watersand no visible macroalgae presence, where the lagoon comprises a slopedaccess, at an infield site of a race or activity circuit facility, theinfield site being contained within a race or activity circuitperimeter, the method comprising: a) demolishing at least part of theinfield site, wherein the demolition process includes excavating a layerof at least 15 cm and up to 6 meters; b) excavating material having avolume of at least 4,000 m3 from an area within the infield site; c)forming a basin for a large water body having a surface area of at least3,000 m2 and a minimum depth of at least 1.4 meters at its deepestpoint, wherein earthworks for the basin are created within the infieldsurrounding perimeter, and wherein the basin includes a basin perimeterand a bottom, whereby the tropical-style swimming lagoon is created andhas crystal clear waters suitable for direct contact recreationalpurposes such as swimming and the practice of water sports; d)constructing water containment walls on at least one section of thebasin perimeter to form a waterfront perimeter, wherein the shape of thewaterfront perimeter includes curves, whereby a more natural aspect forthe tropical style swimming lagoon with crystal clear waters is created,and the basin has a maximum width of 300 meters; e) covering the bottomof the basin with a non-permeable material, wherein the non-permeablematerial covering a majority of the area of the bottom includes aplastic liner of at least 1 mm of thickness with a white or light color;f) constructing a sloped access area on at least one section of thebasin perimeter to form a beach access into the tropical-style lagoonwith crystal clear waters and placing sand in the beach access, whereinthe sloped access area is constructed with a support slab to providestructural stability to such area; g) constructing one or more barriersaround the basin perimeter to cordon off an area to establish acontrolled access area, wherein the controlled access area includes abeach access perimeter; h) including at least one access point withinthe one or more barriers to selectively allow users into the controlledaccess area, whereby the users are allowed entry into the controlledaccess area through payment of an entry fee and are able to use thebeach access and the tropical-style lagoon with crystal clear waters fordirect contact recreational purposes including swimming; i) constructingat least one additional recreational facility comprising food andbeverage and commercial facilities selected from the group comprisingrestaurants, bars, kiosks, stores, and cafes in the vicinity of thewaterfront perimeter; and j) providing a connection that connects theoutfield of the racing or activity circuit with the infield site, inorder to allow transit of vehicles and people from the outfield to theinfield.
 2. The construction method of claim 1, wherein the area aboutthe basin perimeter not located within the controlled access area formsa non-ticketed access area which may be freely accessed by users.
 3. Theconstruction method of claim 1, further comprising building restaurants,kiosks, stores, cafes, and bars in the vicinity of the waterfrontperimeter.
 4. The construction method of claim 1, wherein the demolitionprocess comprises excavating with machinery up to a depth of 20centimeters above the final design excavation level, and wherein theremaining 20 cm are excavated manually.
 5. The construction method ofclaim 1, wherein step c) comprises forming a basin for a large waterbody having a surface area of at least 5,000 m2.
 6. The constructionmethod of claim 1, wherein the connection path comprises a tunnelstructure or a bridge structure that allow transit of vehicles andpeople from one side to the other without obstructing the racing and/oractivity circuit.
 7. The construction method of claim 1, wherein theconnection path is the same racing track circuit that may be adapted toallow people and/or vehicles to pass from one side to the other duringnon-race times.
 8. The construction method of claim 1, wherein when thesoil type has more than a 12% material passing under a N°200 mesh(opening of 0.075 mm), the bottom soil must be compacted to achieve a95% Modified Proctor Density, also referred to as the Maximum DryCompacted Density; and when the soil type has less than a 12% materialpassing under a N°200 mesh (opening of 0.075 mm), the soil must becompacted to achieve no less than 80% of its Relative Density.
 9. Theconstruction method of claim 1, the beach access having a slopedtransition into the basin of between 5% and 30%.
 10. The constructionmethod of claim 1, whereby the lagoon is used for swimming, for thepractice of water sports, and for housing shows and events.
 11. Theconstruction method of claim 1, wherein the non-permeable bottommaterial that covers the bottom of the basin comprises plastic liners,shotcrete, or flexible materials that do not require the use of a thickconcrete layer like conventional swimming pools.
 12. The constructionmethod of claim 1, wherein the tropical style swimming lagoon has atleast 50% less bottom inlets than those required for the filtrationsystem of a conventional swimming pool according to swimming poolstandards; wherein conventional swimming pool standards require at leastone bottom inlet per about 42 m2 of bottom surface.
 13. The constructionmethod of claim 1, wherein the swimming lagoon is man-made, and hasshapes that tends to imitate natural geometries.
 14. The constructionmethod of claim 1, wherein separate access points are included, for bothcontrolled access areas and non-ticketed access areas, so that visitorscan participate in either one or both areas depending on their purposefor visiting the race or activity circuit facility and the swimminglagoon.
 15. The construction method of claim 1, wherein the controlledaccess area is designed so that the total beach area to swimming lagoonarea ratio is 1:2.
 16. The construction method of claim 1, wherein thesurroundings of the swimming lagoon include the use of amphitheaters tohold events selected from the group comprising concerts and festivals.17. The construction method of claim 1, wherein a non-fixed screen isprovided in the vicinity of the swimming lagoon to broadcast content andhouse events and shows.
 18. The construction method of claim 1, whereinthe surroundings of the swimming lagoon include cafes, bars,restaurants, beach centers, promenades, hotels, entertainmentfacilities, virtual and immersive experiences, and similar facilitiesand amenities.
 19. The construction method of claim 1, wherein theswimming lagoon is illuminated through a lighting system.
 20. Theconstruction method of claim 1, wherein the installations surroundingthe tropical-style lagoon is artificially set with a beach theme,including the use of blue and white colors.
 21. The construction methodof claim 1, wherein the swimming lagoon is surrounded by vegetationincluding plants and trees.